Hi @danny , this view is not entirely correct. To activate WOL 3 things are required:
- A network card that supports WOL.
- A BIOS where WOL can be activated in the power management settings (APM> Power on by PCIE / PCI> enabled).
- An operating system with a network driver that supports Wake on Lan.
This article describes it pretty well:
https://www.howtogeek.com/70374/how-to-geek-explains-what-is-wake-on-lan-and-how-do-i-enable-it/
If the network driver does not support the function, WOL will not work either. This is the case with virtually every new Windows 10 installation. The “Wake on Magic Packet” option is missing in the standard driver for Intel or Realtek network cards. The manufacturer’s current driver must be installed here to ensure the WOL function.
As mentioned earlier, WOL has worked flawlessly with Roon Rock over the years until recently. The motherboard’s BIOS is the current version, it hasn’t been changed for a year. The settings were also not changed, I checked this again. The only thing that has changed is the version of rock. The current version 227 no longer supports WOL.
The proof
Fortunately, I still have an older version (183) of a rock image from March this year.
I will install this version now.
I switch off my Cirrus 7 and take a picture of the network connection. Here you can see that with version 227 all control lights on the network connection have gone out. Conversely, this means that the network card cannot react to a WOL signal because it is not supplied with power.
Now I disconnect my network from the router so that no automatic update installation of Rock can take place and I install Roon Rock version 183. 5 minutes later, version 183 is installed.
The Roon interface cannot be loaded with this version, as Roon is immediately looking for an update. It would have been nice for me if I could have shown version 183 in Roon, but it just doesn’t work.
Now I switch the Cirrus 7 off again via the web interface and take a picture of the network connection.
The yellow control light now clearly shows that the network adapter is supplied with power even when it is switched off. The adapter can thus react to the WOL signal. No sooner said than done, I send the WOL signal and the Cirrus 7 starts.
I think that I could clearly show that a change in the operating system or The Rock’s network driver since version 183 has been responsible for the fact that WOL no longer works (with my Realtek network adapter) in version 227.